Home / 772,117.70-1,158,176.55-211,152.20

Finding the Fourth Proportional to 772,117.70, 1,158,176.55 and 211,152.20

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Solution

The fourth proportional to 772,117.70, 1,158,176.55 and 211,152.20 is: 316,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,117.70 : 1,158,176.55 = 211,152.20 : x
  2. Step 2: Convert to fraction form
    772,117.70/1,158,176.55 = 211,152.20/x
  3. Step 3: Cross multiply
    772,117.70x = 1,158,176.55 × 211,152.20
  4. Step 4: Simplify right side
    772,117.70x = 244,551,526,520.91
  5. Step 5: Solve for x
    x = 244,551,526,520.91/772,117.70
  6. Step 6: Final answer
    x = 316,728.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.